Convert Unity test results XML file into proper NUnit format

fix-unity-test-results.sh

#!/usr/bin/env bash
#
# Usage: ./fix-unity-test-results.sh
#
# Unity uses NUnit under the hood for its test framework. Their command line tool outputs a NUnit
# test result XML file. See documentation:
#   * https://github.com/nunit/docs/wiki/Test-Result-XML-Format#test-suite
# 
# The format of this file is currently incorrect. The root element for NUnit XML test results files
# should be a '<test-run>' tag, which is missing from Unity's test results file. See issue on forum:
#   * https://forum.unity3d.com/threads/unity-test-tools.218287/page-6#post-3188590
#
# This script uses the XMLStarlet command line tool and 'script/build/fix-unity-test-results.xslt'
# to convert the incorrect test results XML file into the correct format. This allows the Jenkins
# NUnit plugin to convert the NUnit test results file into a JUnit test results file so Jenkins can
# understand and record test results.
#
set -euo pipefail

xml tr fix-unity-test-results.xslt unity-test-results.xml > nunit-test-results.xml

fix-unity-test-results.xslt

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:output method="xml" version="1.0" encoding="utf-8" indent="yes" cdata-section-elements="message"/>
  <xsl:strip-space elements="*"/>

  <xsl:template match="/">
    <test-run id="2" engine-version="3.0" clr-version="4.0">
      <xsl:copy-of select="(test-suite/@*)[contains('|testcasecount|result|start-time|end-time|duration|total|passed|failed|inconclusive|skipped|asserts|', concat('|', name(), '|'))]" />
      <xsl:apply-templates select="@*|node()"/>
    </test-run>
  </xsl:template>

  <xsl:template match="node()|@*">
    <xsl:copy>
      <xsl:apply-templates select="@*|node()"/>
    </xsl:copy>
  </xsl:template>
</xsl:stylesheet>

Script assumptions:

• the script file is in root project directory
• the XSLT file is in root project directory
• the Unity test resuls XML file is named unity-test-results.xml and in root project directory

You can change the locations of these files to whatever you want, you just need to update the shell script.

We keep the XSLT file and script under script/build/....

When executing tests from the command line we output the results file to build/tests/...

This is the related Unity forum post

Been awhile but, I want to mention that with the current version I'm using 1.4.5 the root tag has been corrected to <test-run>.